A maser stabilized K-band signal generator.
Garner, William G.
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A stable K-band signal generator which uses an ammonia beam maser as a reference is described. The signal generator has a stability of one part in 10⁷ over periods of one hour or more and one part in 10⁸ for shorter periods. Improved circuitry in the i-f portions of the stabilization loop would give stabilities of one part in 10⁹ or better. The tuning range of the signal generator is from two megacycles per second below the reference signal to two megacycles per second above the reference. A technique for Q measurements on high Q cavities using the signal generator is discussed and the results of three such measurements are reported. A method for measuring the gain of a maser amplifier to within 0.5 db using the signal generator is presented and some preliminary results are reported. Several other applications of the signal generator are considered.
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